An invisible Willwear is causing massive damage in random attacks across Tokyo.  Unit 8 tracks the Willwear down to the quagmire zone, a hotbed of illegal immigrant activity.  The area is a lawless zone, so Sena is sent to infiltrate as a civilian garbage collector.  There, he meets an illegal immigrant from a equatorial nation, who he suspects of being involved in the attacks.  When he strikes up a friendship with the man, however, he's forced to choose between his personal feelings of respect, and his duty.
About when my little brother and sister died.
.عن موت أخي وأختي الصّغيرين
vom Tod meines kleinen Bruders
und meiner kleinen Schwester.
de cuando mis hermanos murieron.
de cuando mis hermanos murieron.
je revois la mort de mon frère 
et de ma sœur.
la morte dei miei fratelli minori.
Foi quando os meus irmãos morreram.